In September 2021 the Fermi GBM instrument revealed several bursts from the direction of SGR J1935+2154 [1]}. One of them occurred on September 10, during our IFI+Iqueye observations (GBM trigger n. 653010039, at T\(_0\) = 23:40:34.46 UTC). Figure REF  shows the 10-200 keV light curve of this burst binned at 10 ms, as derived by summing the counts of the two NaI detectors with the best orientation for the magnetar direction (n. 9 and n. 10).
